Explanation

At the highest point of its trajectory, an object thrown upwards has a vertical acceleration due to gravity,

Which is approximately 9.8 m/s² downwards.

While the object's vertical velocity is momentarily zero at the highest point,

The acceleration due to gravity continues to act on it. 

**

RY12-02-23

Explanation

Light travels at about 300,000 kilometers per second in a vacuum with a refractive index of 1.0,

but slows down to 225,000 kilometers per second in water

and 200,000 kilometers per second in the glass.

ND16-3-2023

Explanation

Silicon is a chemical element with the symbol Si and atomic number 14.

Silicon dioxide (SiO₂) is the primary component in glass, making it transparent and durable.

It is obtained from sand (quartz).

It is essential in glass manufacturing

Explanation

Plasma is the fourth state of matter, following:

1. Solids
2. Liquids
3. Gases

It consists of ionized gases with equal numbers of positively and negatively charged particles.

Explanation

A normal blood pressure level of 120/80 mmHg.

High-normal: 130 to 139 mmHg

High: Greater than 140 mmHg

while

mmHg stands for " Millimeter of Mercury"

The instrument used to measure blood pressure is: Sphygmomanometer.

Explanation

Work, mass and distance are scalar quantities because they have magnitude but no direction, but they are not vector quantities.

Vector Quantities: Velocity, momentum, torque, acceleration, weight, displacement.

Scalar Quantities: Work, distance, speed, mass.

Explanation

Explanation

Sucrose is also known as Table sugar.

Sucrose is a type of common sugar.

It is a disaccharide, a molecule which consists of two monosaccharides: glucose and fructose.

Explanation

A normal resting heart rate should be between 60 to 100 beats per minute.

Explanation

The lifespan of a red blood cell is around 120 days.

Blood cells are made in the bone marrow.